Slide mechanism for end extension tables



May 22, 1951 M. FOX

SLIDE MECHANISM FOR END EXTENSION TABLES Filed Dc. 22, 1945 2Sheets-Sheet l a Z F k W- R f v e. W m MN in .77 6% mm M. @l ||l|11|||1Q UNII.IDIILIIOW| 7 f 7 7/V J E May 22, 1951 M. FOX

SLIDE MECHANISM FOR END EXTENSION TABLES 2 Sheets-Sheet 2 Filed Dec. 22,1945 Patented May 22, 1951 UNIT-so sirres PATENT OFFICE SLIDE MECHANIS$END EXTENSION Martin'Fox, Chicago, Ill., assignor to The Seng Company, acorporation of Illinois Application December 22, 1945, Serial No.636,907

3 Claims: I i

This invention relates to hardware forextension tables, and moreparticularly to an improved slide mechanism for supporting a retractableextension leaf for a refectory table.

The primary object of the invention is to provide an improved andsimplified slide mechanism which can readily be installed and adjustedafter the table top has been secured to its supporting frame. M

Another object of the invention is to provide a slide" mechanismwhichis'secured' to the" table top and front frame of the'tablefandthereby reinforces and "strengthens" the table structureitself.

Another object of the invention is to "provide narrow metal supportingarms for anextension leaf, so that narrow slots in the end frames of thetable are sufficient to accommodatethe arms, and large unsightlyopenings are not required.

A further object of the invention is to provide a slide mechanism withimproved attaching members that can be readily adjusted to bring theextension leaf to the proper level, and a'concealed guide membersupports the extension arm by metal to metal contact-in'retracted,extended and intermediate positions.

The invention is illustrated in a preferred embodiment in theaccompanying drawings, in which- Figure 1 is a fragmentary verticalsectional view showing the improved slide mechanism installed in one endof a table; Fig. 2, a fragmentary longitudinal sectional view showingthe table with slide mechanisms installed on both ends, one leaf beingretracted and the opposite leaf extended; Fig. 3, a bottom plan view ofthe table and mechanism shown in Fig. 2; Fig. 4, a fragmentary sectionalview taken as indicated at line 4-4 of Fig. 1; and Fig. 5, a fragmentarysectional view taken as indicated at line 5-5 of Fig. 1.

In the embodiment illustrated, a refectory table is shown having asupporting frame 6 carried by legs I. A table top 8 is secured to thecentral portion of the frame, leaving open spaces at each end which aresufiiciently large to receive extension leaves 9. The end members of theframe are provided with narrow slots I0, through which the arms of theslide mechanisms may extend when the leaves are in extended position.

The present invention is directed to the metal slide mechanism and twoof said mechanisms are required for each extension leaf. The slidemechanism has a guide member I l which is pivotally secured at its rearend to the under side of the table top by an inverted L-shaped bracketl2 and screws l3. The pivotal support at the extreme rear is provided bya rivet l4, and a second rivet l5 extends through a vertically elongatedslot in the bracket l2, so that the front end of the guide member Il maybe raised or lowered slightly to the desired adjusted position.

The guide member II has a, longitudinally extending closed slot l6 whichis inclined upwardly and forwardly at one end, as shown in'Figs. 1 and2. The member is also provided at its front end portion with ahook-shaped terminal slot I1, and the lower edge l8 of the guide memberserves as a track to guide a stud into the slot I1. As best shown inFig. 5, the front of the guide member 'I l is provided with an attachingflange l9, which is turned at right angles to the body of the guidemember and has a pair of vertically elongated slots 20 to receive screws2!, .which secure the front end of the member to the frame 6. Theattaching flange also has a lateral extension 22 across the slot ID inthe frame, which serves as a guide for the lower edge 23 of the slidemember 24.

The slide member 24', or supporting arrrijis provided with a flange 25which issecured to" the extension leaf 9 'by'screws 26. The rear endportion of the slide 24 is provide with'a headed stud 21',"which remainsin the guide 'slot' l6. In'front of the stud 21 is another headed stud28, which may be moved into and out of the terminal slot l1 andcooperates with the stud 21 to form a cantilever support for the slidemember 24.

To install the device, the extension leaf 9 is secured to the flange 25and brought into the position illustrated in Fig. 1. The rear bracket 12is then screwed to the table top and the front flange I9 is attached tothe frame 6 by means of screws 2|. Before the screws are finallytightened, the leaf 9 is raised or lowered, so as to lie exactly in theplane of the table top 8, and then a nail may be driven through a hole29 to secure the flange in its proper adjusted position. After thescrews 2| have been tightened, the device is ready to use.

To return the extension leaf from the position shown in Fig. 1, it ismerely necessary to raise the leaf 9 slightly and draw it outwardly andthen lower it under the guidance of the stud 28 in the slot H. The leafmay then be pushed back completely under the table top 8. It may benoted, as shown in Fig. 5, that in the travel the slide 24 may ride uponthe finger 22 of the flange 19. While being retracted, the stud 28,riding on or immediately below the edge I8 of the guide member, willprevent the leaf from being raised into a position where it might becomescratched on the bottom of the table top.

It will be noted, in Fig. 1, that the guide member I! is secured to thetable top and the front of the frame 6. This not only provides a veryrigid support for the slide member, but reinforces and strengthens theconnection between the table frame and the table top.

The foregoing detailed description is given for clearness ofunderstanding only, and no unnecessary limitations should be understoodtherefrom, for some modifications will be obvious to those skilled inthe art.

I claim:

1. Slide mechanism for supporting a retractable extension leaf for atable, comprising: a metal guide member having an attaching bracket forsecuring its rear portion to the underside of a table top and having atits front end an attaching flange adapted to be secured to the slottedend frame of a table, said attaching flange including a laterallyextending guide finger, and said guide member having a longitudinallyextending closed guide slot and a front downwardly open hook-shapedterminal slot; and an upright metal slide member adapted to slide onsaid guide finger, said slide member having a horizontal flange at itsouter end to support an extension leaf and having at its rear portion apair of headed studs, one of said studs engaging said closed guide slotin the guide member and the other stud being adapted to be guided alongthe lower edge of said guide member into said terminal slot.

2. Slide mechanism for supporting a retractable extension leaf for atable, comprising: an inverted L-shaped bracket adapted to be secured tothe underside of a table top; a metal guide member having its rearportion secured to said attaching bracket by a rivet making a pivotalconnection and a second rivet making a lost motion connection, saidguide member having at its front end an attaching flange adapted to besecured to the slotted end frame of a table, said guide member having alongitudinally extending closed guide slot and a front downwardly openhook-shaped terminal slot; and a slide member having a horizontal flangeat its outer 4 end to support an extension leaf and having at its rearportion a pair of headed studs, one of said studs engaging said closedguide slot in the guide member and the other stud being adapted to beguided along the lower edge of said guide member into said terminalslot.

3. Slide mechanism for supporting a retractable extension leaf for atable, comprising: an inverted L-shaped bracket adapted to be secured tothe underside of a table top; a guide member having its rear portionpivotally connected to said bracket, said guide member having at itsfront end a flange for attachment to the slotted end frame of a table,said flange having a vertically elongated slot to receive a screwadjustably and a nail hole to receive a nail for holding the flange inadjusted position, and said guide member having a longitudinallyextending closed guide slot and a front downwardly open hookshapedterminal slot; and a slide member having a horizontal flange at itsouter end to support an extension leaf and having at its rear portion apair of headed studs, one of said studs engaging said closed guide slotin the guide member and the other stud being adapted to be guided alongthe lower edge of said guide member into said terminal slot.

MARTIN FOX.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number 7 Name Date 315,949 Kundtz Apr. 14, 18851,949,800 Landaw Mar. 6, 1934 1,987,953 Fox Jan. 15, 1935 2,017,289North Oct. 15, 1935 2,022,318 Lanum Nov. 26, 1935 2,111,616 Creech Mar.22, 1938 2,135,836 Parrish et al Nov. 8, 1938 2,187,133 Luppert Apr.,9,1939 2,456,835 Nash Dec. 21, 1948 FOREIGN PATENTS Number Country Date200,030 Great Britain June 27, 1923

